transparencies
transparencies
transparencies
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Motivation World-Sheet SUSY Lie superalgebras From World-Sheet SUSY to Supertargets Outlook<br />
Topological conformal field theory<br />
• BRST-currents/charges Q, ¯Q<br />
• Cohomology by Q or Q + ¯Q<br />
• Conformal tensor exact<br />
H phys = kernel(Q)<br />
image(Q)<br />
T (z) = [Q, G(z)]<br />
¯T (¯z) = [Q, Ḡ(¯z)]<br />
• Cohomology ring: Position independent structure<br />
constants<br />
φ i φ j ∼ a ij k φ k